Flashcards
IGCSE Woods
Flashcards do conjunto (95)
- 1DESIGNWOODS
- 2TimberWood used in manufacturing of an attract
- 3HardwoodsNothing to do with how hard the wood is but hardwoods come from deciduous trees, trees that shed leaves in autumn
- 4SoftwoodsFrom coniferous trees, these have cones and needles that fall off them
- 5Examples of SoftwoodsUses
- 6Scots PineLow cost furniture, construction, joinery
- 7Parana PineBetter quality Furniture, Structural carpentry
- 8Yellow CedarFurniture, Veneer, Boats
- 9SpruceIndoor Furniture
- 10RedwoodWoodwork, Cupboards, Shelves, Roofs
- 11Examples of HardwoodsUses
- 12AshSports Equipment, Wooden Ladders, Tools
- 13BeechFurniture, Toys, Tool Handles
- 14ElmIndoor and Outdoor Furniture
- 15MahoganyGood Quality Furniture
- 16OakHigh Quality Furniture, Interior Woodwork
- 17Manufactured BoardsBoards that are man made from natural wood in specific ways
- 18BlockboardCentral Core of a softwood, bonded with adhesive with a sheet of plywood in each side and then veneer
- 19ChipboardSmall ships of wood bonded together with resin and compressed into sheets, often used for cheaper furniture
- 20HardboardPulped Wood Fibres that are pressurised till the fibres bond together producing a side that is rough and a side that is smooth
- 21MDFMade from fine wood dust and resin pressed into a board
- 22PlywoodMade from veneers of timber with the grain of each layer being at right angles and are bonded by resin and pressure
- 23Advantages of Manufactured Boards- Available in large size
- Have specific purposes and specific properties
- Often use any wasted timber
- Uniform with few imperfections
- Do not split
- Can be in finished formats - 24SteambendingVeneer are put in a steam chamber. Steam is introduced ate one end at it travels through heating it and as the steam cools it condenses back to water and drains away. After some time u take it out and it is malleable and have a change of properties
- 25LaminatingInvolves no heat but uses multiple thin layers of veneer and bonding them to each other over a former
- 26Marking out/shaping/glueing together.
- 27Vacuum forming processthe mould is placed on the platen, then the thermoplastic sheet is placed over the airtight seal, clamped above the blaten, the heater is pulled across then the platen is raised so the ould is sitting underneath the plastic, the vacuum is turned on and the plastic is sucked over the mould
- 28Marking out/Shaping/Gluinguses
- 29Steel ruleUsed for marking out up to 300mm
used for straight lines - 30Marking gaugeM, arks lines with an indentation
create parallel lines to another line or the edges of the material - 31Permanent markerused for marking out on any material
- 32Try-squarelines at a 90-degree angle to the edge
- 33Centre punchto create a divot for the drill or machine to hold on to when drilling into it.
- 34Dividersused to create circles and spherical line on the material
- 35Mitre squareto create a 45-degree angle on the material
- 36Scriberto make scratches on the material instead of a pencil (which can be rubbed off)
- 37Shapinguses
- 38Chisel and malletto shave off large pieces of material which would take to long for a sander to do
- 39Sandpaperto smooth out the materials at the corners or on the material, used to get away pencil lines.
- 40needle filesused to file away small amounts of material in hard to get to areas
- 41Filesuses to smoothen corners and to smoothen the material
- 42non-ferrous metals.
- 43AluminiumLight in weight and malleable but strong, a good conductor of heat and corrosion-resistant. Uses - Drink cans, saucepans, bike frames
- 44CopperAn excellent electrical conductor of heat and electricity, extremely malleable and can be polished, oxidises to a green colour. Uses - Plumbing fittings and electrical wires, professional chef's saucepans
- 45SilverA precious metal that is soft and malleable when heated, highly resistant to corrosion and an excellent electrical conductor of heat. Uses - Jewellery
- 46Drill bitsUses
- 47Twist bita viable option for drilling through most woods and plastics, as well as some thin metals
- 48steep drill bitdrill bits allow a user to gradually increase the size of an existing hole without needing to attach a new drill bit.
- 49Forstner bitbits that are suitable for making relatively large flat-bottom holes and allow for these holes to have a very clean finish,
- 50masonry bitideal for drilling through brick, concrete, and stone
- 51brad-point bitThe W-shaped point that enables them to create very precise holes in wood.
- 52auger bitbest suited for drilling large holes in hard, dry lumber hexagonal or a triangle shank to provide a more secure, stable connection with the chuck.
- 53spade bitspade bits utilize a W-shaped tip similar to that of brad-point bit, but on a larger scale
- 54countersink bita specialized type of drill bit optimized for making bevelled openings at the top of a pilot hole
- 55spear point bitflat, arrow-shaped tips are able to safely boreholes in a piece of glass without damaging the pane’s structural integrity.
- 56rivet bitthose shanks often feature a tip at both ends, allowing a user to double the number of holes they drill before replacing a bit.
- 57tile bitplaced against the work surface at a 45-degree angle before the drill is initiated at a very slow speed.
- 58Plastics.
- 59Thermoforming plasticsheated and reshaped many times.
- 60polyamide (Nylon)Tough, fairly hard, self-lubricating, resists wear, good resistance to chemicals and machines, Uses - Casing for power tools, curtain rail fittings and clothing
- 61Polymethyl methacrylate (Acrylic)Stiff, hard but scratches easily, durable, brittle in small sections, good electrical insulator, machines and polishes well. Uses - Signs, aircraft canopies and windows, covers for car lights, washbasins and baths
- 62High impact polystyrene (HIPS)Light but hard plastic
Available in sheets but softens at high temperatures. Uses - Common for school projects which include products' outer casings or packaging. - 63Polypropylene (PP)Light plastic, hard but can scratch easily, tough, resistance to chemicals, resists work fatigue. Uses - Used for medical and laboratory equipment, seating, rope, some kitchen equipment
- 64Polythene:- low density (LDPE)Tough, resistance to chemicals, flexible, fairly soft, good electrical insulator. Uses -Plastic bottles, toys, packaging film and bags
- 65Polythene:- high density (HDPE)Stiff, hard, able to be sterilised. Uses -Plastic bottles, tubing and milk crate
- 66PVCStiff and hard-wearing. Uses - Air and water pipes and medical devices
- 67Thermosetting plasticsonly be heated and shaped once.
- 68Epoxy resin (Epoxide, ER)Good electrical insulator, hard, brittle unless reinforced, resists chemicals. Uses - printed circuit boards (PCBs) and surface coatings and adhesives
- 69Melamine formaldehyde (MF)Stiff, hard, strong, resists some chemicals and staining. Uses - Electrical insulation and tableware
- 70Polyester resin (PR)Stiff, hard, brittle unless laminated, good electrical insulator, resists chemicals. Uses - car bodies and boats
- 71Urea-formaldehyde (UF)Stiff, hard, strong, brittle, good electrical insulator. Uses - electrical fittings and adhesives
- 72Phenol formaldehyde (PF, Bakelite)Hard and brittle. Uses - Board and tabletop games and billiard balls
- 73Carcase constructionButt joint
corner housing
through housing
stop housing
comb joint
used in kitchen cupboards - 74Wood joints.
- 75Basic Butt Joint.
- 76Mitered Butt Joint
- 77Half-Lap Joint.
- 78Tongue and Groove Joint.
- 79Mortise and Tenon Joint.
- 80Biscuit Joint.
- 81Pocket Joint.
- 82Dado.
- 83Rabbet.
- 84Through Dovetail Joint.
- 85Half-Blind Dovetail Joint.
- 86Sliding Dovetail.
- 87Box Joint.
- 88Batch production.
- 89prototypesIn one-off production, an individual item is designed and made to meet a client's specification.
- 90productionBatch production is where many items of the same product are produced.
- 91Mass productionManufacturing in huge numbers is categorised as mass production.
- 92Lean manufacturingLean manufacturing puts a focus on efficiency to add value for a customer
overproduction and not being demanded - 93JigsA jig is a device used to hold a piece of material and guide cutting tools and they are used to ensure the process can be repeated accurately and to a high quality.
- 94Used fora carpenter making a hole of a specific alignment and depth may use a jig to aid accuracy
- 95—
Informações
- Descrição
- Outline of woods and notes on them
- Criado por
- sam smith7210
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- Criado por Rohan Badman · 16 dez 2020
- Copiado por sam smith7210 · 19 jan 2021
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